Lighting fixture



Feb. 26, 1957 J. JAFFE 2,783,368

LIGHTING FIXTURE Filed April 22, 1954 I 2 Sheets-Sheet 1 FIG. I

INVENTOR. JOSEPH L.JAFFE ATTORNEYS Feb. 26, 1957 J. L. JAFFE LIGHTING FIXTURE 2 Sheets-$heet 2 Filed A1$ril 22. 1954 INVENTOR. JOSEPH L. JAFFE United States Patent LIGHTING FIXTURE Joseph L. Jalfe, Shaker Heights, Ohio, assignor to The Perfeclite Company, Cleveland, Ohio, a corporation of Ohio Application April 22, 1954, Serial No. 424,834

1 Claim. (Cl. 240-128) This invention, relating as indicated to a lighting fixture, is particularly directed to a novel type of lighting fixture for incandescent illumination particularly. This fixture employs a globe, or glass bowl, and provides a mounting ring for said globe which will protect it in the normal handling of said fixture, besides serving as mounting means in the lighting fixture in a type of bayonet lock so that the bowl cannot be accidentally damaged. This construction is further designed to permit control of the exterior contour of the fixture itself, so that it may conform to the most modern designs and not be encumbered by securing means for the globe.

This globe mounting ring and bracket for this fighting fixture has a bayonet type lock outwardly directed and spaced inwardly from the outside surface of the lighting fixture, so that the globe and mounting ring will not move with respect to the fixture due to vibration or other causes. However, the globe may, under some conditions, be very heavy and it must be securely mounted within the lighting fixture, so that it will not fall and break.

This invention consists in employing a mounting bracket to the globe and a lighting fixture having no functional exterior surface with no openings or apertures for thumb screws or other type of mounting means. Rather, this exterior surface is meant to be plain or ornamented to carry out the design features of the fixture, but principally the securing means to the ceiling or similar surface is meant to be on a raised portion centrally in the fixture, wherein a plurality of square bayonet projections are adapted to fit within mating apertures in an annularly shaped ring on said globe, said ring having a plurality of indentures on either side of said openings pressed from the plane of the ring, so that the globe and mounting ring cannot he accidentally displaced relative to the lighting fixtures and the bayonet lugs, and fall.

An object of this invention is to produce a lighting fixture of simple design and construction that has safety means attached to the globe, so that it may be handled and not broken, together with a lighting fixture of simplified construction and easy replacement, which will conform to the most modern design.

A further object of this invention is to combine with the aforesaid construction a mounting ring spaced from the globe which will have safety features and reduce accidental breakage of the globe.

To the accomplishment of the foregoing and related ends said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claim, the following description setting forth in detail one approved means of carrying out the invention, such disclosed means, however, constituting but one of the various ways in which the principles of the invention may be used.

In the drawings:

Fig. l is a top plan view of the lighting fixture and globe,

2,783,368 Patented Feb. 26, 1957 ICC Fig. 2 is a fragmentary side view along the line 2-2 of Fig. 1,

- Fig. 3 is a partial cross-sectional view through the globe lighting fixture and mounting ring along the line 3-3 of Fig. 1, and

Fig. 4 is a complete cross-sectional view of the lighting'fixture, the mounting bracket and globe along the line 4-4 of Fig. 1.

In the drawings 10 shows generally a lighting fixture and 11 shows the upper mounting bracket, by means of which it is fastened to a ceiling in a pendant position. The central portion of said lighting bracket 12 is cylindrically shaped and is connected by means of a flange 13 to an annularly shaped portion 14 adapted to contact a fiat ceiling surface. Outwardly therefrom may be the external design configuration of the lighting fixture at 15, and this may be of any depth adapted for the globe 16 but by its construction is not a functional part of the fixture itself but rather lends ornamentation and lines to the fixture. The exterior surface of this portion is unmarred by openings or means for attaching the globe to the fixture. Exteriorly of the central portion there will be a plurality of bayonet lugs 17. In this drawing these are shown at four positions along the inner exterior surface 18 of the lighting fixture. They are square shaped, shown at 20, the sides of which are parallel to the central portion 12 as well as the raised annular portion 14. In the center of said lighting fixture is an opening, not shown, for a lamp socket 221 and bulb 22. This socket has a base 23 and connecting wires 24.

In connection with the operation of this bayonet lug 20 the construction of the globe and the mounting ring is important. The curved metal band 25 surrounds the globe. This metal band is adapted to fit the reduced portion, or neck, 26 of the globe below the flaring top 27. Said band is connected by means of an adjustable metal locking clamp 28 to theother end of the band 25, the band being split at 29. The ends of the locking clamp are turned back upon themselves through a slot or loop in the metal band. Said metal band 25 surrounding the globe is integral with an annularly shaped protector ring 30. The protector ring is spaced from the upper edge of the globe 27 so that it may protect the ring when the globe is installed, removed to change bulbs and to clean the fixture. Said protector ring provides a flat surface which aids in setting the globe down so that it will not roll or move. Interiorly of the ring there are a plurality of rectangular openings 31 conforming with the shape and size of the bayonet lugs. On either side of said apertures or slots are indentures 32 projecting downwardly, i. e., internally of the globe, so thatas the globe, together with the aforesaid annularly shaped protector ring are advanced upwardly into the lighting fixture, the bayonet lugs and slots mate. These lugs would then pass over the indentures providing a friction contact. Said indentures are designed to have a rather straight side to project into the path of the lug some distance so that the globe and protector ring must be raised slightly to ride over the indentures. By this means the bayonet lug can be securely fastened and vibration will not cause the globe or protector ring to slip out of the lighting fixture. The globe is, of course, secured to the metal band and the adjustable metal locking clamp by means of an adhesive or an adhesive tape so that the globe will not slide or turn in the metal band. It provides a more secure attachment to the lighting fixture.

I wish it to be understood that I do not confine myself to the precise details herein set forth in the preferred manner of carrying out my invention, as it is apparent that many changes and variations may be made by those skilled in the art without departing from the spirit of the invention" or exceeding the scope of the'app'ended claim. I claim:

A pendant type lighting fixture comprising a base member adapted to be secured to a ceiling, said base member having, a lowered. circular portion: centrally thereof and an annular portion outwardly thereof, said annulanportion having, a-flange -atthe outer 'surf-ace thereofl' said circular portion having; a plurality of bayonet-lugs projecting outwardly of this portion of the fixture; a globe, a metal band secured tosaid globe, said metal bandhaving aprotector ring annular in shapeintegral therewith inwardly of the globe and of a diameterv just larger than theJowered circular portion, said protector ring;having a-plurality of openingsfrom the-inner edge ofthe" protector ring adapted to mate withbayonet lugs-r'on the lowered'eentfal portion: saidprotector'ring' furtherhavin'g downward indentures adjacent said opening to prevent accidental movement of the globe, ring, and band relati e to the base member.

References Cited in the file of this patent UNITED STATES PATENTS 1,013,668 Litle Jan. 2, 1912 1,185,330 Johnson" May 30, 1916 1,255,163 Hagen--. -'Feb. 5, 19.18

2,746,339 Doane -Feb. 11-,-193O FOREIGN PATENTS 4731434 GreavBi'itain Oct: 13} 1937 

